/**
 * 生成16位随机字符串
 * @return {string}
 */
export const random16 = () => {
    const timestamp = new Date().getTime();
    const letters = 'abcdefghijklmnopqrstuvwxyz';
    const randomLetter = letters.charAt(Math.floor(Math.random() * letters.length));
    const randomChars = Math.random().toString(36).substring(2, 8);
    return randomLetter + randomChars + timestamp.toString().substring(-2);
}